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Polymer electrolyte fuel cell

  • US 20040209141A1
  • Filed: 05/10/2004
  • Published: 10/21/2004
  • Est. Priority Date: 12/27/2000
  • Status: Active Grant
First Claim
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1. A polymer electrolyte fuel cell comprising:

  • a fuel cell stack comprising a plurality of conductive separators and a plurality of membrane electrode assemblies that are stacked with one of said conductive separators interposed therebetween, each of said membrane electrode assemblies comprising a polymer electrolyte membrane, and an anode and a cathode sandwiching said polymer electrolyte membrane;

    a means for supplying a fuel gas to said anode; and

    a means for supplying an oxidant gas to said cathode, wherein said plurality of conductive separators comprise at least one separator comprising;

    a fuel gas inlet-side manifold aperture;

    a fuel gas outlet-side manifold aperture;

    a gas flow channel for supplying the fuel gas to said anode which is formed on an anode-side of the separator;

    an inlet-side through hole and an outlet-side through hole penetrating the separator which are formed at an inlet-side end and an outlet-side end of said gas flow channel for fuel gas; and

    an inlet-side connection groove and an outlet-side connection groove for connecting said inlet-side and outlet-side through holes with said fuel gas inlet-side manifold aperture and said fuel gas outlet-side manifold aperture, respectively, which are formed on a cathode-side of the separator.

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